3D display device and manufacturing method for 3D display device

Abstract

A 3D display device and a manufacturing method for a 3D display device. The 3D display device comprises: a display panel (100); and a light adjusting structure (200). The light adjusting structure (200) comprises: a plurality of first electrodes (205), which are located between a first substrate (201) and a second substrate (207), wherein the orthographic projection of the first electrodes (205) on the first substrate (201) completely coincides with the orthographic projection of pixels (P) on the first substrate (201); a second electrode (206), which is located between the first substrate (201) and the second substrate (207); and a liquid crystal layer (204), which is located between the first substrate (201) and the second substrate (207), wherein the liquid crystal layer (204) is provided with a plurality of liquid crystal repeating units (Q), the orthographic projection of liquid crystal repeating units (Q) on the first substrate (201) completely coincides with the orthographic projection of the pixels (P) on the first substrate (201), each of the liquid crystal repeating units (Q) comprises at least two liquid crystal parts (QE), the liquid crystal alignment directions of different liquid crystal parts (QE) are different, and the liquid crystal alignment directions of the same liquid crystal part (QE) are the same.

Description

3D display device and manufacturing method of 3D display device TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of 3D display, and in particular to a 3D display device and a manufacturing method of the 3D display device. BACKGROUND

[0002] The working principle of three-dimensional (3D) display technology is that, for the same scene, the left eye and the right eye of a viewer receive images respectively, and the distance between the two eyes of the viewer (i.e., the interpupillary distance, about 65 mm) causes a slight difference in the viewing angles of the two eyes, so that the images observed by the left eye and the right eye of the viewer are also slightly different. This difference is called "binocular parallax", and after fusion by the visual cortex of the brain, a stereoscopic effect is formed.

[0003] With the development of display technology, 3D display is very popular. 3D technology refers to a display technology that directly allows the left and right eyes to see images with parallax from a display screen without any tools, and the two images are transmitted to the brain to produce a display with a stereoscopic effect.

[0004] SUMMARY

[0005] The present disclosure provides a 3D display device and a manufacturing method of the 3D display device. The 3D display device comprises:

[0006] a display panel having a plurality of pixels;

[0007] a light adjusting structure located on the light exit side of the display panel;

[0008] The light adjusting structure comprises:

[0009] a first substrate and a second substrate arranged oppositely;

[0010] a plurality of first electrodes located between the first substrate and the second substrate; the orthographic projection of the first electrodes on the first substrate completely coincides with the orthographic projection of the pixels on the first substrate;

[0011] a second electrode located between the first substrate and the second substrate;

[0012] a liquid crystal layer located between the first substrate and the second substrate; the liquid crystal layer has a plurality of liquid crystal repeating units, the orthographic projection of the liquid crystal repeating units on the first substrate completely coincides with the orthographic projection of the pixels on the first substrate; the liquid crystal repeating unit comprises at least two liquid crystal parts, the liquid crystal orientation directions of different liquid crystal parts are different, and the liquid crystal orientation directions of the same liquid crystal part are the same.

[0013] In a possible implementation, the display panel has a plurality of pixel rows extending along a first direction and arranged along a second direction, and the pixel rows include a plurality of pixels arranged along the first direction in sequence.

[0014] The liquid crystal layer has a plurality of liquid crystal cell rows extending along the first direction and arranged along the second direction, and the liquid crystal cell rows are fully coincident with the pixel rows in the orthographic projection of the first substrate.

[0015] The liquid crystal cell rows include at least two sub-liquid crystal cell rows extending along the first direction and arranged along the second direction; the liquid crystal alignment directions of adjacent two sub-liquid crystal cell rows in a same liquid crystal cell row are different, and the liquid crystal alignment directions of a same sub-liquid crystal cell row are the same.

[0016] In a possible implementation, the handedness directions of light emitted from different liquid crystal parts through a same liquid crystal repeating unit are different.

[0017] In a possible implementation, the light adjusting structure further includes a first light shielding layer located on a side of the second substrate facing the liquid crystal layer.

[0018] The first light shielding layer includes a plurality of first light shielding parts extending along the first direction and arranged along the second direction; and the first light shielding parts are located in the gap between adjacent two pixel rows in the orthographic projection of the first substrate.

[0019] In a possible implementation, the first light shielding part is an integral connection structure.

[0020] In a possible implementation, the first light shielding part includes a plurality of first sub-light shielding parts arranged along the first direction in sequence, and adjacent first sub-light shielding parts have a gap therebetween.

[0021] In a possible implementation, in the first light shielding layer, the first sub-light shielding parts are distributed in an array.

[0022] In a possible implementation, in the first light shielding layer, the first sub-light shielding parts of adjacent first light shielding parts are distributed in a staggered manner.

[0023] In a possible implementation, in adjacent two first light shielding parts, the distance between the centers of adjacent two first sub-light shielding parts in the second direction in the first direction is greater than zero and less than or equal to 140 mm.

[0024] In a possible implementation, in a same first light shielding part, the spacing between adjacent first sub-light shielding parts in the first direction is greater than zero and less than or equal to 340 mm.

[0025] In the two adjacent first light shielding portions, the distance between the centers of the two adjacent first sub light shielding portions in the second direction is greater than zero and less than or equal to 205 mm.

[0026] In a possible implementation, the first light shielding portions are spaced apart from each other in the orthographic projection of the first substrate.

[0027] In a possible implementation, the display panel includes a plurality of pixel columns extending along the second direction and arranged along the first direction.

[0028] The display panel includes a second light shielding layer; the second light shielding layer includes a plurality of first light shielding strips extending along the first direction and arranged along the second direction, and a plurality of second light shielding strips extending along the second direction and arranged along the first direction; the first light shielding strips in the orthographic projection of the first substrate coincide with the gaps between the adjacent pixel rows in the orthographic projection of the first substrate; and the second light shielding strips in the orthographic projection of the first substrate coincide with the gaps between the adjacent pixel columns in the orthographic projection of the first substrate.

[0029] The first light shielding strips in the orthographic projection of the first substrate cover the first light shielding portions in the orthographic projection of the first substrate.

[0030] In a possible implementation, the display panel includes a plurality of pixel columns extending along the second direction and arranged along the first direction.

[0031] The light adjusting structure further includes a first light shielding layer on the side of the second substrate facing the liquid crystal layer; the first light shielding layer includes a plurality of third light shielding strips extending along the first direction and arranged along the second direction, and a plurality of fourth light shielding strips extending along the second direction and arranged along the first direction.

[0032] The third light shielding strips in the orthographic projection of the first substrate coincide with the gaps between the adjacent pixel rows in the orthographic projection of the first substrate; and the fourth light shielding strips in the orthographic projection of the first substrate coincide with the gaps between the adjacent pixel columns in the orthographic projection of the first substrate.

[0033] In a possible implementation, the pixel includes a plurality of sub-pixels.

[0034] The first light shielding layer further includes a plurality of fifth light shielding strips extending along the second direction and arranged along the first direction; the fifth light shielding strips in the orthographic projection of the first substrate coincide with the gaps between the adjacent sub-pixel columns in the orthographic projection of the first substrate.

[0035] In a possible implementation, the light adjusting structure and the display panel, only the light adjusting structure has the first light shielding layer.

[0036] In a possible implementation, the display panel includes a second light shielding layer; the second light shielding layer includes a plurality of second light shielding portions extending along a first direction and arranged along a second direction; the second light shielding portions are located between adjacent two pixel rows in the orthographic projection of the first substrate; and a gap between adjacent two second light shielding portions is located in the orthographic projection of the first substrate.

[0037] The second light shielding portion includes a plurality of second sub-light shielding portions arranged along the first direction in sequence, and a gap between adjacent second sub-light shielding portions.

[0038] In a possible implementation, the display panel includes a plurality of transistors.

[0039] The second sub-light shielding portion covers the transistor in the orthographic projection of the first substrate.

[0040] In a possible implementation, the 3D display device further includes an optical adhesive layer between the first substrate and the display panel.

[0041] In a possible implementation, the first electrode and the second electrode are located in the same layer and are located on a side of the first substrate facing the liquid crystal layer; the first electrode includes a first slit group and a second slit group arranged along a second direction; and the second electrode includes a third slit group and a fourth slit group arranged along the second direction.

[0042] The liquid crystal repeating unit includes a first liquid crystal portion and a second liquid crystal portion distributed along the second direction; the first liquid crystal portion in the orthographic projection of the first substrate coincides with the first slit group in the orthographic projection of the first substrate; and the second liquid crystal portion in the orthographic projection of the first substrate coincides with the second slit group in the orthographic projection of the first substrate.

[0043] In a possible implementation, the extension direction of the slit of the first slit group is the same as the liquid crystal orientation direction of the first liquid crystal portion; and the extension direction of the slit of the second slit group is the same as the liquid crystal orientation direction of the second liquid crystal portion.

[0044] The first liquid crystal portion has a liquid crystal long axis extension line in the orthographic projection of the first substrate, which forms an included angle with the first direction in a range of 30°-60°; and the second liquid crystal portion has a liquid crystal long axis extension line in the orthographic projection of the first substrate, which forms an included angle with the first direction in a range of -30°- -60°, and the second direction is perpendicular to the first direction.

[0045] In a possible implementation, the extending direction of the slits of the first slit group is perpendicular to the liquid crystal alignment direction of the first liquid crystal part; and the extending direction of the slits of the second slit group is perpendicular to the liquid crystal alignment direction of the second liquid crystal part.

[0046] The first liquid crystal part has a liquid crystal long axis extension line, which, in the orthographic projection of the first substrate, forms an angle with the first direction in the range of 120° to 150°; and the second liquid crystal part has a liquid crystal long axis extension line, which, in the orthographic projection of the first substrate, forms an angle with the second direction in the range of -120° to -150°, the second direction being perpendicular to the first direction.

[0047] In a possible implementation, the first electrode is located on the side of the first substrate facing the liquid crystal layer; and the second electrode is located on the side of the second substrate facing the liquid crystal layer.

[0048] The liquid crystal repeating unit includes a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part; the first liquid crystal part and the fourth liquid crystal part are arranged along a first direction, the second liquid crystal part and the third liquid crystal part are arranged along the first direction, the first liquid crystal part and the second liquid crystal part are arranged along a second direction, the third liquid crystal part and the fourth liquid crystal part are arranged along the second direction, and the second direction is perpendicular to the first direction.

[0049] In a possible implementation, the first electrode includes a first slit group, a second slit group, a third slit group, and a fourth slit group; the first liquid crystal part, in the orthographic projection of the first substrate, coincides with the first slit group in the orthographic projection of the first substrate; the second liquid crystal part, in the orthographic projection of the first substrate, coincides with the second slit group in the orthographic projection of the first substrate; the third liquid crystal part, in the orthographic projection of the first substrate, coincides with the third slit group in the orthographic projection of the first substrate; and the fourth liquid crystal part, in the orthographic projection of the first substrate, coincides with the fourth slit group in the orthographic projection of the first substrate.

[0050] The liquid crystal alignment direction of the first liquid crystal part is parallel to the extending direction of the slits of the first slit group; the liquid crystal alignment direction of the second liquid crystal part is parallel to the extending direction of the slits of the second slit group; the liquid crystal alignment direction of the third liquid crystal part is parallel to the extending direction of the slits of the third slit group; and the liquid crystal alignment direction of the fourth liquid crystal part is parallel to the extending direction of the slits of the fourth slit group.

[0051] The liquid crystal long axis extension line of the first liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 30°-60°; the liquid crystal long axis extension line of the second liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 120°-150°; the liquid crystal long axis extension line of the third liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 210°-240°; and the liquid crystal long axis extension line of the fourth liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 300°-330°.

[0052] In a possible implementation, the first electrode is a planar electrode.

[0053] The liquid crystal long axis extension line of the first liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of -30°- -60°; the liquid crystal long axis extension line of the second liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 30°-60°; the liquid crystal long axis extension line of the third liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 120°-150°; and the liquid crystal long axis extension line of the fourth liquid crystal part is projected on the first substrate and forms an angle with the first direction in the range of 210°-240°.

[0054] In a possible implementation, the first electrode is located on the side of the first substrate facing the liquid crystal layer; and the second electrode is located on the side of the second substrate facing the liquid crystal layer.

[0055] The liquid crystal repeating unit comprises a first liquid crystal group and a second liquid crystal group arranged along a first direction; the first liquid crystal group and the second liquid crystal group each comprise a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part; the first liquid crystal part and the fourth liquid crystal part are arranged along the first direction, the second liquid crystal part and the third liquid crystal part are arranged along the first direction, the first liquid crystal part and the second liquid crystal part are arranged along a second direction, the third liquid crystal part and the fourth liquid crystal part are arranged along the second direction, and the second direction is perpendicular to the first direction.

[0056] The liquid crystal long axis extension line of the first liquid crystal part is projected on the first substrate and forms an angle with the second direction in the range of -30°- -60°; the liquid crystal long axis extension line of the second liquid crystal part is projected on the first substrate and forms an angle with the second direction in the range of 30°-60°; the liquid crystal long axis extension line of the third liquid crystal part is projected on the first substrate and forms an angle with the second direction in the range of 120°-150°; and the liquid crystal long axis extension line of the fourth liquid crystal part is projected on the first substrate and forms an angle with the second direction in the range of 210°-240°.

[0057] In a possible implementation, the first electrode is located on a side of the first substrate facing the liquid crystal layer; the second electrode is located on a side of the second substrate facing the liquid crystal layer; and the first electrode is a planar electrode.

[0058] The liquid crystal repeating unit comprises a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part arranged in sequence along a first direction; a first liquid crystal long axis extension line of the first liquid crystal part is projected on the first substrate to form an angle with the first direction in a range of 120°-150°; a second liquid crystal long axis extension line of the second liquid crystal part is projected on the first substrate to form an angle with the first direction in a range of 30°-60°; a third liquid crystal long axis extension line of the third liquid crystal part is projected on the first substrate to form an angle with the first direction in a range of -30°--60°; and a fourth liquid crystal long axis extension line of the fourth liquid crystal part is projected on the first substrate to form an angle with the first direction in a range of -120°--150°.

[0059] The present disclosure also provides a manufacturing method of the 3D display device provided by the present disclosure, which comprises the following steps:

[0060] forming a plurality of first electrodes, second electrodes, and a liquid crystal layer between the first substrate and the second substrate;

[0061] applying electricity to the first electrodes and the second electrodes and solidifying to make the liquid crystals in different liquid crystal parts of the liquid crystal layer deflect and be fixed in a preset orientation to form a light adjusting structure;

[0062] attaching the light adjusting structure to a light emitting side of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0063] FIG. 1A is a cross-sectional view of a 3D display device provided by the present disclosure;

[0064] FIG. 1B is a cross-sectional view of a 3D display device provided by the present disclosure;

[0065] FIG. 2A is a perspective view of a partial structure of a 3D display device provided by the present disclosure;

[0066] FIG. 2B is a schematic view of a pixel layer in FIG. 2A;

[0067] FIG. 2C is a schematic view of a first electrode of a light adjusting structure in FIG. 2A;

[0068] FIG. 2D is a schematic view of a liquid crystal layer of the light adjusting structure in FIG. 2A;

[0069] FIG. 2E is a top view of a part of the 3D display device according to an embodiment of the present disclosure;

[0070] FIG. 2F is a schematic view of the first electrode of the light adjusting structure in FIG. 2E;

[0071] FIG. 2G is a schematic view of the liquid crystal layer of the light adjusting structure in FIG. 2E;

[0072] FIG. 2H is a top view of a part of the 3D display device according to an embodiment of the present disclosure;

[0073] FIG. 3A is a schematic view of a part of the 3D display device according to an embodiment of the present disclosure;

[0074] FIG. 3B is a top view of a part of the 3D display device corresponding to FIG. 3A;

[0075] FIG. 4A is a schematic view of a part of the 3D display device according to an embodiment of the present disclosure;

[0076] FIG. 4B is a top view of a part of the 3D display device corresponding to FIG. 4A;

[0077] FIG. 5 is a top view of a part of the 3D display device according to an embodiment of the present disclosure;

[0078] FIG. 6A is a schematic view of a part of the 3D display device according to an embodiment of the present disclosure;

[0079] FIG. 6B is a top view of a part of the 3D display device corresponding to FIG. 6A;

[0080] FIG. 7 is a schematic view of a part of the 3D display device according to an embodiment of the present disclosure;

[0081] FIG. 8A is a schematic view of a part of the 3D display device according to an embodiment of the present disclosure;

[0082] FIG. 8B is a top view of a part of the 3D display device corresponding to FIG. 8A;

[0083] FIG. 8C is a schematic view of the position relationship of the black matrix in different layers according to an embodiment of the present disclosure;

[0084] FIG. 8D is a schematic view of the position relationship of the black matrix in different layers according to an embodiment of the present disclosure;

[0085] FIG. 9 is a top view of a part of the 3D display device according to an embodiment of the present disclosure;

[0086] FIG. 10A is a schematic view of the position relationship of the black matrix in different layers according to an embodiment of the present disclosure;

[0087] FIG. 10B is a schematic view of FIG. 10A when the black matrix is misaligned;

[0088] FIG. 11 is a schematic view of the positional relationship of black matrices of different layers according to an embodiment of the present disclosure;

[0089] FIG. 12A is a schematic view of a light shielding layer of a display panel according to an embodiment of the present disclosure;

[0090] FIG. 12B is a schematic view of FIG. 12A when the black matrix is misaligned;

[0091] FIG. 12C is a schematic view of FIG. 12A at the dashed circle;

[0092] FIG. 13 is a schematic view of the generation principle of moire;

[0093] FIG. 14 is a schematic view of the manufacturing process of a 3D display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0094] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present disclosure. The embodiments can be implemented in multiple different forms. A person of ordinary skill in the art can easily understand that the manners and contents can be converted into one or more forms without departing from the purpose of the present disclosure and the scope thereof. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. The embodiments in the present disclosure and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0095] Unless otherwise defined, technical terms or scientific terms used in the present disclosure should be understood as having the same meaning as commonly understood by a person of ordinary skill in the art to which the present disclosure belongs. The terms “first”, “second” and similar terms used in the present disclosure do not indicate any order, number or importance, but are only used to distinguish different components. The terms “include” or “contain” and similar terms mean that the components or objects before the terms encompass the components or objects listed after the terms and their equivalents, without excluding other components or objects. The terms “connect” or “connected” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0096] As used herein, "about" or "approximately" means within a range that is acceptable to one of ordinary skill in the art given the measurement and error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ± 30%, 20%, 10%, 5% of the stated value. In the present specification, "about" can be a case where the index values differ within 10%.

[0097] In the drawings, the thicknesses of layers, films, panels, regions, etc., are exaggerated for clarity. The exemplary embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, embodiments described herein are not to be construed as being limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an area illustrated or described as flat can typically have rough and / or nonlinear features. Moreover, sharp angles that are illustrated can be rounded. Thus, the regions illustrated in the figures are schematic and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the present claims.

[0098] In this specification, terms of "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicating the positional or directional relationship are used to describe the positional relationship of constituent elements with reference to the drawings only for the convenience of describing the present specification and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting on the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the constituent elements are described. Therefore, it is not limited to the words described in the specification, and can be appropriately replaced according to the situation.

[0099] In this specification, unless explicitly stated and limited otherwise, the terms "mount", "connected", "connection" should be interpreted broadly. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate piece, or communication inside two elements. The above terms in the present disclosure can be understood according to the situation by those skilled in the art.

[0100] In this specification, "electrically connected" includes the case where elements are connected through a wiring, a circuit, or the like having a certain function. There is no particular limitation on the element as long as it can transmit an electric signal between the elements to be connected. Examples of the element include an electrode, a wiring, a switching element such as a transistor, a resistor, an inductor, a capacitor, and another element having one or more functions.

[0101] In this specification, a transistor refers to an element including at least three terminals of a gate electrode (gate), a drain electrode, and a source electrode. The transistor has a channel region between the drain electrode (a drain electrode terminal, a drain region, or a drain) and the source electrode (a source electrode terminal, a source region, or a source), and current can flow through the drain electrode, the channel region, and the source electrode. In this specification, the channel region refers to a region where current flows mainly.

[0102] In addition, the gate of the transistor can be referred to as a control electrode. The functions of the "source electrode" and the "drain electrode" are sometimes interchanged with each other in dependence on the direction in which current flows, the kind of transistor, or the like. Thus, in this specification, the "source electrode" and the "drain electrode" are interchanged with each other in some cases.

[0103] In this specification, "parallel" means a state where an angle formed between two straight lines is greater than or equal to -10° and less than or equal to 10°, and thus can include a state where an angle formed between two straight lines is greater than or equal to -5° and less than or equal to 5°. In addition, "perpendicular" means a state where an angle formed between two straight lines is greater than or equal to 80° and less than or equal to 100°, and thus can include a state where an angle formed between two straight lines is greater than or equal to 85° and less than or equal to 95°.

[0104] In this specification, a triangle, a rectangle, a trapezoid, a pentagon, a hexagon, or the like is not necessarily a strict one, can be an approximate triangle, rectangle, trapezoid, pentagon, hexagon, or the like, and can have some small deformation due to a tolerance, a rounded corner, a curved side, or the like.

[0105] In this specification, a "film" and a "layer" can be interchanged with each other. For example, a "conductive layer" can be replaced with a "conductive film". Similarly, an "insulating film" can be replaced with an "insulating layer".

[0106] In order to keep the following description of embodiments of the present disclosure clear and concise, detailed descriptions of known functions and structures will be omitted in this specification.

[0107] 3D imaging is generated by the visual difference of human eyes. The distance between the two pupils of a human is generally about 6.5 cm. When the two eyes simultaneously view an object, the left eye can see more left side content of the object, and the right eye can see more right side content of the object. Different images are formed on the retinas of the left and right eyes. After the two different images are comprehensively processed by the brain, the front and back, left and right of the object can be distinguished, thereby generating stereoscopic vision. The 3D display technology is based on the principle of binocular disparity. The image displayed on the liquid crystal screen is artificially separated into two images, and then the two images are independently sent to the left and right eyes of a person. After the images of two different viewpoints are analyzed and processed by the brain, an image with left-right, up-down, front-back and other stereoscopic effects is formed. The glass pattern retarder (GPR) 3D display technology converts the linearly polarized light of the same polarization state emitted on the odd and even pixel rows into left-handed circularly polarized light and right-handed circularly polarized light, respectively, in units of pixels. A viewer can wear circularly polarized light glasses. The left and right lenses of the glasses can respectively transmit left-handed circularly polarized light and right-handed circularly polarized light. After passing through the circularly polarized light glasses, the left and right eyes can respectively identify the images on the odd and even rows of the panel, thereby realizing 3D stereoscopic effect.

[0108] However, the related GPR 3D display products have a single structure, and are prone to have disadvantages such as reduced resolution and halved brightness.

[0109] Therefore, the embodiments of the present disclosure provide a 3D display device. Referring to FIGS. 1A-1B and 2A-2H, FIGS. 1A and 1B can be cross-sectional schematic views of the 3D display device provided by the embodiments of the present disclosure, FIG. 2A is a perspective view of a partial structure of the 3D display device provided by the embodiments of the present disclosure, FIG. 2B is a schematic view of a pixel layer in FIG. 2A, FIG. 2C is a schematic view of a first electrode of a light adjusting structure in FIG. 2A, FIG. 2D is a schematic view of a liquid crystal layer of the light adjusting structure in FIG. 2A, FIG. 2E is a top view of a partial structure of the 3D display device provided by the embodiments of the present disclosure, FIG. 2F is a schematic view of a first electrode of the light adjusting structure in FIG. 2E, FIG. 2G is a schematic view of a liquid crystal layer of the light adjusting structure in FIG. 2E, and FIG. 2H is a top view of a partial structure of the 3D display device provided by the embodiments of the present disclosure. The 3D display device can include:

[0110] The display panel 100 has a plurality of pixels P. Optionally, the pixel P can include a plurality of sub-pixels, for example, can include a red sub-pixel, a green sub-pixel, and a blue sub-pixel.

[0111] The light adjusting structure 200 is located on the light emitting side of the display panel 100. Optionally, in combination with FIG. 2A, the light emitting side of the display panel 100 can be, for example, the upper side of FIG. 2A.

[0112] The light adjusting structure 200 includes:

[0113] a first substrate 201 and a second substrate 207 arranged oppositely;

[0114] a plurality of first electrodes 205 located between the first substrate 201 and the second substrate 207; a projection of the first electrode 205 on the first substrate 201 completely coincides with a projection of the pixel P on the first substrate 201; optionally, each sub-pixel can include a sub-pixel electrode, a projection of the first electrode 205 on the first substrate 201 completely coincides with a projection of the pixel P on the first substrate 201, which can be that a projection of the first electrode 205 on the first substrate 201 completely coincides with a projection of a plurality of sub-pixel electrodes in the pixel P on the first substrate 201, that is, one first electrode 205 corresponds to three sub-pixel electrodes;

[0115] a second electrode 206 located between the first substrate 201 and the second substrate 207;

[0116] a liquid crystal layer 204 located between the first substrate 201 and the second substrate 207; the liquid crystal layer 204 has a plurality of liquid crystal repeating units Q; optionally, the plurality of liquid crystal repeating units Q can be periodically arranged along the first direction X and the second direction Y; a projection of the liquid crystal repeating unit Q on the first substrate 201 completely coincides with a projection of the pixel P on the first substrate 201; the liquid crystal repeating unit Q includes at least two liquid crystal parts QE, the liquid crystal orientation directions of different liquid crystal parts QE are different, and the liquid crystal orientation directions of the same liquid crystal part QE are the same.

[0117] In the embodiments of the present disclosure, the liquid crystal layer 204 has a plurality of liquid crystal repeating units Q, a projection of the liquid crystal repeating unit Q on the first substrate 201 completely coincides with a projection of the pixel P on the first substrate 201; the liquid crystal repeating unit Q includes at least two liquid crystal parts QE, the liquid crystal orientation directions of different liquid crystal parts QE are different, due to different liquid crystal orientations, different rotating directions of light can be emitted, adjacent two rows of pixels can respectively emit two rotating directions of polarized light to realize 3D display, at the same time, the area of each pixel P can form a multi-domain display effect, which can improve the resolution of the 3D display device and improve the quality of 3D display.

[0118] It should be noted that the first electrode 205 and the second electrode 206 in the embodiments of the present disclosure can be used to apply electricity to the liquid crystal layer to make the different liquid crystal parts QE of the liquid crystal repeating unit Q deflect during the forming process of the 3D display device, and after the liquid crystal part QE is deflected by electricity, solidification can be performed, and then in the subsequent use process of the 3D display device, the orientation of the different liquid crystal parts QE of the liquid crystal layer 204 can no longer change.

[0119] In a possible implementation, in the light adjusting structure 200, other structures can also be included between the first electrode 205 and the first substrate 201, for example, a circuit layer for providing voltage to the first electrode 205 can also be included, wherein the circuit layer can include transistors and signal lines; as shown in FIG. 1A or FIG. 1B, the first electrode 205 and the circuit layer can be located on the side of the first substrate 201 facing the liquid crystal layer 204, thereby reducing the influence of the metal light reflection of the circuit layer on the display.

[0120] In a possible implementation, the first electrode 205 can be block-shaped, and a plurality of first electrodes 205 can be arranged in an array on the first substrate 201, and the plurality of first electrodes 205 can be loaded with pixel voltages when the liquid crystal layer 204 is subjected to orientation curing in the manufacturing process of the 3D display device; when the second electrode 206 is located in a different layer from the first electrode 205, the second electrode 206 can be a whole-surface planar electrode, and the second electrode 206 can be loaded with a common voltage when the liquid crystal layer 204 is subjected to orientation curing in the manufacturing process of the 3D display device; in another possible implementation, when the second electrode 206 is arranged in the same layer as the first electrode 205, the second electrode 206 can also be a non-planar structure, and optionally, the areas in a whole layer except the first electrode 205 can be arranged as the pattern of the second electrode 206, and the second electrode 206 can be an integrally connected structure.

[0121] In a possible implementation, in the embodiments of the present disclosure, the display panel can be a liquid crystal display panel, or an organic light-emitting display panel, or a display panel of another structural type. Optionally, when the display panel is a liquid crystal display panel, the display panel can have the same structure as a conventional liquid crystal display panel, for example, the display panel can specifically include: oppositely arranged array substrate and counter substrate, and liquid crystal layer between the array substrate and the counter substrate; wherein the array substrate can include: pixel circuit layer, sub-pixel electrode, and common electrode; wherein the pixel electrode layer can include a plurality of transistors; the counter substrate can include a color film layer; of course, the display panel can include more structures, and the embodiments of the present disclosure are not limited thereto.

[0122] In a possible implementation, as shown in FIG. 2A-FIG. 2G, the display panel 100 has a plurality of pixel rows P100 extending along a first direction X and arranged along a second direction Y, and each pixel row P100 includes a plurality of pixels P arranged along the first direction X; the liquid crystal layer 204 has a plurality of liquid crystal cell rows Q100 extending along the first direction X and arranged along the second direction Y, and the orthographic projection of the liquid crystal cell row Q100 on the first substrate 201 completely coincides with the orthographic projection of the pixel row P100 on the first substrate 201.

[0123] In combination with FIG. 2G, the liquid crystal cell row Q100 includes at least two sub-liquid crystal cell rows QE10 extending along the first direction X and arranged along the second direction Y. In the same liquid crystal cell row Q100, the liquid crystal alignment directions of two adjacent sub-liquid crystal cell rows QE10 are different, and the liquid crystal alignment directions of the same sub-liquid crystal cell row QE10 are the same. In this way, the same liquid crystal cell row Q100 can correspond to the emission of two kinds of polarization light with different rotation directions. For example, as shown in FIG. 2E, the upper sub-liquid crystal cell row QE10 can emit right-handed circularly polarized light in the clockwise direction, and the lower sub-liquid crystal cell row QE10 can emit left-handed circularly polarized light in the counterclockwise direction. Since each liquid crystal cell row Q100 is arranged repeatedly along the second direction Y, two kinds of polarization light with different rotation directions can be formed in adjacent two liquid crystal cell rows Q100 in the entire display device, and 3D display can be realized. The viewer can realize the viewing of the 3D display device by cooperating with the circularly polarized light glasses.

[0124] In a possible implementation, in combination with FIG. 2E, the rotation directions of the light emitted by different liquid crystal parts QE in the same liquid crystal repeating unit Q are different. For example, as shown in FIG. 2E, the upper liquid crystal part QE can emit right-handed circularly polarized light in the clockwise direction, and the lower liquid crystal part QE can emit left-handed circularly polarized light in the counterclockwise direction.

[0125] In a possible implementation, by testing the liquid crystal alignment of different liquid crystal parts QE of the cured liquid crystal layer in the light adjusting structure 200, the rotation direction of the light emitted by the liquid crystal part QE can be determined. For example, the azimuth angle of +45° corresponds to left-handed circularly polarized light, and the azimuth angle of -45° corresponds to right-handed circularly polarized light.

[0126] In a possible implementation, in combination with FIGS. 1A, 7, 8A-8D, and 9, in the embodiment of the present disclosure, the light adjusting structure 200 further includes a first light shielding layer 202 located on the side of the second substrate 207 facing the liquid crystal layer 204. The first light shielding layer 202 includes a plurality of first light shielding parts BZ1 extending along the first direction X and arranged along the second direction Y. The first light shielding part BZ1 is located in the gap between two adjacent pixel rows P100 in the orthographic projection of the first substrate 201.

[0127] In a possible implementation, referring to FIG. 7, the first light shielding part BZ1 is an integral connection structure.

[0128] In combination with FIG. 13, in the manufacturing process of the 3D display device, when the light adjusting structure is attached to the display panel, the light adjusting structure and the display panel can have an attachment deviation, which further causes the black matrix (e.g., the solid black lines in FIG. 13) of the display panel and the black matrix layer (e.g., the secondary black lines in FIG. 13) of the light adjusting structure to have a corresponding deviation, so that the overall black matrix occupies a larger area in some regions, causing the brightness of the regions to be darker, and the overall black matrix occupies a smaller area in some regions, causing the brightness of the regions to be brighter, thereby forming the moire patterns with alternating bright and dark regions.

[0129] Therefore, in a possible implementation, referring to FIGS. 8A-8D and FIG. 9, the first light shielding portion BZ1 includes a plurality of first sub-light shielding portions BZ10 arranged in the first direction X in sequence, and gaps are arranged between adjacent first sub-light shielding portions BZ10.

[0130] It can be understood that the liquid crystal layer 204 of the light adjusting structure 200 needs to use a photo-alignment technology, and a target needs to be tracked for positioning in the alignment process to ensure the alignment accuracy. By using the first light shielding portion BZ1 including a plurality of first sub-light shielding portions BZ10 arranged independently and at intervals, that is, using the dot-shaped first sub-light shielding portion BZ10 as the tracking target, the alignment accuracy can be ensured. Moreover, by using the first light shielding portion BZ1 including a plurality of first sub-light shielding portions BZ10 arranged independently and at intervals, when the light adjusting structure 200 and the display panel 100 have an attachment deviation, the overlapping area of the light shielding layer of the light adjusting structure 200 and the light shielding layer of the display panel can be reduced, thereby improving the moire phenomenon of the 3D display device. That is, the embodiments of the present disclosure can improve the moire phenomenon of the 3D display device while ensuring the alignment accuracy.

[0131] In a possible implementation, referring to FIG. 8C, in the same first light shielding part BZ1, the spacing a2 between the centers of the adjacent first sub-light shielding parts BZ10 in the first direction X is greater than 0 and less than or equal to 340 mm; in the adjacent two first light shielding parts BZ, the spacing a3 between the centers of the adjacent two first sub-light shielding parts BZ10 in the second direction Y is greater than 0 and less than or equal to 205 mm. In the alignment exposure process of the light adjusting structure 200, the tracking lens requires that the point-like first sub-light shielding part BZ10 repeatedly appears within 340 mm in the horizontal direction and 205 mm in the vertical direction, so as to avoid the exposure alignment deviation, which affects the display quality. In the embodiment of the present disclosure, by setting the spacing a2 between the centers of the adjacent first sub-light shielding parts BZ10 in the same first light shielding part BZ1 in the first direction X to be greater than 0 and less than or equal to 340 mm, and the spacing a3 between the centers of the adjacent two first sub-light shielding parts BZ10 in the adjacent two first light shielding parts BZ in the second direction Y to be greater than 0 and less than or equal to 205 mm, the exposure alignment deviation can be avoided, and the overlapping area of the light shielding layer of the light adjusting structure 200 and the light shielding layer of the display panel can be reduced, the moire risk can be reduced, and the 3D viewing experience can be ensured.

[0132] In a possible implementation, referring to FIG. 8C and FIG. 8D, FIG. 8D can be an enlarged schematic view of the dashed circle in FIG. 8C, when the light shielding layer of the light adjusting structure 200 is set to a point-like structure, the width b1 of the first sub-light shielding part BZ10 in the second direction Y can range from 8 ± 3% μm, the width b2 of the first sub-light shielding part BZ10 in the first direction Y can range from 108 ± 3% μm, and the width b3 of the first light shielding strip BM1 in the second direction Y can range from 50 μm to 120 μm.

[0133] When the first light shielding part BZ1 of the light adjusting structure 200 is set to have a plurality of first sub-light shielding parts BZ10 arranged independently and at intervals, referring to FIG. 8C, the display panel includes a second light shielding layer, and the second light shielding layer includes a plurality of first light shielding strips BM1 extending in the first direction X and arranged in the second direction Y, and a plurality of second light shielding strips BM2 extending in the second direction Y and arranged in the first direction X; the first light shielding strip BM1 covers the first light shielding part BZ1 in the orthographic projection of the first substrate 201; the first light shielding strip BM1 in the orthographic projection of the first substrate 201 coincides with the gap between the adjacent pixel rows P100 in the orthographic projection of the first substrate 201; and the second light shielding strip BM2 in the orthographic projection of the first substrate 201 coincides with the gap between the adjacent pixel columns in the orthographic projection of the first substrate 201.

[0134] In a possible implementation, referring to FIGS. 8A-8D, the first light-blocking layer includes a plurality of first sub-light-blocking portions BZ10 arranged in an array. That is, the first sub-light-blocking portions BZ10 are arranged in multiple rows and multiple columns, and adjacent two first light-blocking portions BZ1 include two first sub-light-blocking portions BZ10 that are in the same column.

[0135] In a possible implementation, referring to FIG. 9, the first light-blocking layer includes a plurality of first sub-light-blocking portions BZ10 arranged in an array. That is, the first sub-light-blocking portions BZ10 are arranged in multiple rows and multiple columns, and adjacent two first light-blocking portions BZ1 include two first sub-light-blocking portions BZ10 that are not in the same column.

[0136] In a possible implementation, referring to FIG. 8C, in adjacent two first light-blocking portions BZ1, the distance a1 between the centers of two adjacent first sub-light-blocking portions BZ10 in the second direction Y is greater than zero and less than or equal to 140 mm. In the embodiment of the present disclosure, in adjacent two first light-blocking portions BZ1, the distance a1 between the centers of two adjacent first sub-light-blocking portions BZ10 in the second direction Y is greater than zero and less than or equal to 140 mm, which can meet the requirement of alignment exposure and avoid the situation that one capturing lens cannot track two positioning point-shaped first sub-light-blocking portions BZ10.

[0137] In a possible implementation, in combination with FIG. 8B or FIG. 9, the first light-blocking portions BZ1 are spaced apart from each other by a plurality of pixel rows P100 in the orthographic projection of the first substrate 201.

[0138] In a possible implementation, the display panel 100 can also be configured without a light-blocking layer (black matrix layer), and only the light adjustment structure 200 is configured with a light-blocking layer, so as to reduce the overlapping area of the light-blocking layer of the light adjustment structure 200 and the light-blocking layer of the display panel. For example, in combination with FIGS. 10A-10B and FIG. 11, the display panel includes a plurality of pixel columns extending along the second direction Y and arranged along the first direction X; the light adjustment structure 200 includes a first light-blocking layer; the first light-blocking layer includes a plurality of third light-blocking strips BM3 extending along the first direction X and arranged along the second direction Y, and a plurality of fourth light-blocking strips BM4 extending along the second direction and arranged along the first direction; the orthographic projection of the third light-blocking strips BM3 on the first substrate 201 coincides with the gap between adjacent pixel rows in the orthographic projection of the first substrate 201; and the orthographic projection of the fourth light-blocking strips BM4 on the first substrate 201 coincides with the gap between adjacent pixel columns in the orthographic projection of the first substrate 201. In the embodiment of the present disclosure, by configuring only the light adjustment structure 100 with a black matrix layer and not configuring the display panel 200 with a black matrix layer, the overlapping area of the light-blocking layer of the light adjustment structure 200 and the light-blocking layer of the display panel can be reduced, so as to improve the moiré phenomenon of the 3D display device.

[0139] In a possible implementation, when the light adjusting structure 200 has the first electrode 205 shown in FIG. 2A, the light adjusting structure 200 can only be provided with the fourth light shielding strip BM4 at a position corresponding to a pixel column, and no light shielding structure can be provided at a position of a sub-pixel column, as shown in FIG. 10A.

[0140] In another possible implementation, when the light adjusting structure has the first electrode 205 shown in FIG. 3A or FIG. 4A, the pixel includes a plurality of sub-pixels, and the first light shielding layer further includes: a plurality of fifth light shielding strips BM5 extending along the second direction Y and arranged along the first direction X; a projection of the fifth light shielding strip BM5 on the first substrate 201 overlaps a gap between adjacent sub-pixel columns in a projection of the first substrate 201, as shown in FIG. 11.

[0141] Because there are many metal traces (for example, gate lines and data lines) in the display panel 100, when the display panel 100 is lighted, metal light leakage is more, and at the same time, metal reflection is serious due to reflection of ambient light. If the light adjusting structure 200 has insufficient shielding effect or exists a bonding deviation, display abnormalities are easily caused. Therefore, in order to avoid such light leakage and reflection bias, a block / island-shaped black matrix can be designed in the display panel 100 to reduce the light leakage and reflection bias of the display panel 100 itself. At the same time, the existence of the block / island-shaped black matrix pattern also makes it difficult to interfere with the black matrix pattern of the light adjusting structure 200, so that moire is not caused. That is, in a possible implementation, the light adjusting structure 100 can be provided with a light shielding layer, and the display panel 100 can be provided with a point-shaped black matrix to reduce the overlapping area of the light shielding layer of the light adjusting structure 200 and the light shielding layer of the display panel, for example, as shown in FIGS. 12A-12B, the display panel includes: a second light shielding layer; the second light shielding layer includes: a plurality of second light shielding portions BZ2 extending along the first direction X and arranged along the second direction Y; a projection of the second light shielding portion BZ2 on the first substrate 201 is located in a gap between adjacent two pixel rows in a projection of the first substrate; the second light shielding portion BZ2 includes: a plurality of second sub-light shielding portions BZ20 arranged along the first direction Y in sequence, and a gap between adjacent second sub-light shielding portions BZ2. In the embodiment of the present disclosure, by providing the light adjusting structure 100 with a light shielding layer and the display panel 100 with a point-shaped black matrix, the overlapping area of the light shielding layer of the light adjusting structure 200 and the light shielding layer of the display panel can be reduced, and the moire phenomenon of the 3D display device can be improved.

[0142] In a possible implementation, as shown in FIG. 12A and FIG. 12C (which is a schematic view of FIG. 12A corresponding to the dashed circle), the display panel includes a plurality of transistors T, and the second sub-shading part BZ20 covers the projection of the transistors T on the first substrate 201. That is, the second sub-shading part BZ20 can be arranged at the position of the transistors T on the display panel, which can improve the moire phenomenon of the 3D display device, and can prevent the reflection of the metal pattern of the transistors T and / or the influence of external light on the transistors.

[0143] Optionally, the transistor T can include a gate, an active pattern, a source and a drain, and the projection of the second sub-shading part BZ20 on the first substrate 201 can cover at least part of the projection of the gate of the transistor T on the first substrate 201, and / or at least part of the projection of the source of the transistor T on the first substrate 201, and / or at least part of the projection of the drain of the transistor T on the first substrate 201, and / or at least part of the projection of the active pattern of the transistor T on the first substrate 201.

[0144] In a possible implementation, the drain of the transistor T can be connected to the sub-pixel electrode through a via hole, and the projection of the second sub-shading part BZ20 on the first substrate 201 can also cover the projection of the via hole on the first substrate 201.

[0145] In a possible implementation, as shown in FIG. 1A or FIG. 1B, the 3D display device further includes an optical adhesive layer 208 between the first substrate 201 and the display panel 100. Optionally, the light adjusting structure 200 can be attached through the optical adhesive layer 208.

[0146] In a possible implementation, as shown in FIG. 1A or FIG. 1B, the light adjusting structure 200 can further include a first alignment film layer 203 on the side of the liquid crystal layer 204 facing the second substrate 207. Optionally, the light adjusting structure 200 can further include a second alignment film layer (not shown in the figure) on the side of the liquid crystal layer 204 facing the first substrate 201.

[0147] In specific implementation, the first electrode 205 and the second electrode 206 can be located in the same layer or different layers, and the first electrode 205 can be a structure with slits or a planar structure. The following is a specific example. For example, in a possible implementation, referring to FIG. 1A and FIG. 2A-2H, the first electrode 205 and the second electrode 206 are located in the same layer and are located on the side of the first substrate 201 facing the liquid crystal layer 204; the first electrode 205 includes a first slit group S1 and a second slit group S2 arranged along the second direction Y; the liquid crystal repeating unit Q includes a first liquid crystal part Q1 and a second liquid crystal part Q2 arranged along the second direction Y; the orthographic projection of the first liquid crystal part Q1 on the first substrate 201 coincides with the orthographic projection of the first slit group S1 on the first substrate 201; and the orthographic projection of the second liquid crystal part Q2 on the first substrate 201 coincides with the orthographic projection of the second slit group S2 on the first substrate 201. In the embodiment of the present disclosure, by arranging the liquid crystal repeating unit Q to include the first liquid crystal part Q1 and the second liquid crystal part Q2 arranged along the second direction Y, the display effect of two domains can be formed at the position corresponding to each pixel P, thereby improving the resolution of the 3D display device and improving the image quality of 3D display.

[0148] In a possible implementation, in combination with FIG. 2E, the extension direction of the slit S0 of the first slit group S1 is perpendicular to the liquid crystal orientation direction of the first liquid crystal part Q1; the extension direction of the slit S0 of the second slit group S2 is perpendicular to the liquid crystal orientation direction of the second liquid crystal part Q2; the liquid crystal long axis extension line e1 of the first liquid crystal part Q1 forms an angle α1 with the first direction X in the orthographic projection on the first substrate 201, and the angle α1 ranges from 120° to 150°, for example, 135°; the liquid crystal long axis extension line e2 of the second liquid crystal part Q2 forms an angle α2 with the first direction X in the orthographic projection on the first substrate 201, and the angle α2 ranges from -120° to -150°, for example, -135°, and the second direction Y is perpendicular to the first direction X.

[0149] Through the light adjusting structure shown in FIG. 2E, the first liquid crystal part Q1 corresponding area emits clockwise right-handed circularly polarized light, and the second liquid crystal part Q2 emits counterclockwise left-handed circularly polarized light, thereby forming two kinds of rotating polarized light in the adjacent two rows of liquid crystal unit rows Q 100, realizing 3D display, and forming a display effect of two domains at the position corresponding to each pixel P, thereby improving the resolution of the 3D display device and improving the image quality of 3D display.

[0150] In a possible implementation, the liquid crystal layer shown in FIG. 2E can be a positive liquid crystal, the extension direction of the slits S0 of the first slit group S1 forms an angle with the first direction X in the range of 30°-60°, for example, it can be 45°, the extension direction of the slits S0 of the second slit group S2 forms an angle with the first direction X in the range of -30°--60°, for example, it can be -45°, after the liquid crystal layer orientation is powered, the liquid crystal of the first liquid crystal part Q1 can be deflected to 135°, and the liquid crystal of the second liquid crystal part Q2 can be deflected to -135°, forming a two-domain effect.

[0151] In a possible implementation, in combination with FIG. 2H, the extension direction of the slits S0 of the first slit group S1 is the same as the orientation direction of the liquid crystal of the first liquid crystal part Q1; the extension direction of the slits S0 of the second slit group S2 is the same as the orientation direction of the liquid crystal of the second liquid crystal part Q2; the first direction X is perpendicular to the second direction Y; the normal projection of the long axis extension line e1 of the liquid crystal of the first liquid crystal part Q1 on the first substrate 201 forms an angle with the first direction X in the range of 30°-60°, for example, it can be 45°; the normal projection of the long axis extension line e2 of the liquid crystal of the second liquid crystal part Q2 on the first substrate 201 forms an angle with the first direction X in the range of -30°--60°, for example, it can be -45°.

[0152] In a possible implementation, the liquid crystal layer shown in FIG. 2H can be a negative liquid crystal, the extension direction of the slits S0 of the first slit group S1 forms an angle with the first direction X in the range of 30°-60°, for example, it can be 45°, the extension direction of the slits S0 of the second slit group S2 forms an angle with the first direction X in the range of -30°--60°, for example, it can be -45°, after the liquid crystal layer orientation is powered, the liquid crystal of the first liquid crystal part Q1 can be deflected to 45°, and the liquid crystal of the second liquid crystal part Q2 can be deflected to -45°, forming a two-domain effect.

[0153] In a possible implementation, as shown in FIG. 1B and FIG. 3A-3B, the first electrode 205 is located on a side of the first substrate 201 facing the liquid crystal layer 204; the second electrode 206 is located on a side of the second substrate 207 facing the liquid crystal layer 204; the liquid crystal repeating unit Q includes a first liquid crystal part Q1, a second liquid crystal part Q2, a third liquid crystal part Q3, and a fourth liquid crystal part Q4; the first liquid crystal part Q1 and the fourth liquid crystal part Q4 are arranged along a second direction Y, the second liquid crystal part Q2 and the third liquid crystal part Q3 are arranged along the second direction Y, the first liquid crystal part Q1 and the second liquid crystal part Q2 are arranged along a first direction X, the third liquid crystal part Q3 and the fourth liquid crystal part Q4 are arranged along the first direction X, and the second direction Y is perpendicular to the first direction X. In the embodiment of the present disclosure, by causing the liquid crystal repeating unit Q to include the first liquid crystal part Q1, the second liquid crystal part Q2, the third liquid crystal part Q3, and the fourth liquid crystal part Q4, a four-domain display effect can be formed at a position corresponding to each pixel P, and thus the resolution of the 3D display device is improved, and the display quality of the 3D display is improved.

[0154] In a possible implementation, as shown in FIG. 3A-3B, the first electrode 205 includes a first slit group S1, a second slit group S2, a third slit group S3, and a fourth slit group S4; a projection of the first liquid crystal part Q1 on the first substrate 201 coincides with a projection of the first slit group S1 on the first substrate 201; a projection of the second liquid crystal part Q2 on the first substrate 201 coincides with a projection of the second slit group S2 on the first substrate 201; a projection of the third liquid crystal part Q3 on the first substrate 201 coincides with a projection of the third slit group S3 on the first substrate 201; and a projection of the fourth liquid crystal part S4 on the first substrate 201 coincides with a projection of the fourth slit group S4 on the first substrate 201.

[0155] A liquid crystal orientation direction of the first liquid crystal part Q1 is parallel to an extension direction of the slit S0 of the first slit group S1; a liquid crystal orientation direction of the second liquid crystal part Q2 is parallel to an extension direction of the slit S0 of the second slit group S2; a liquid crystal orientation direction of the third liquid crystal part Q3 is parallel to an extension direction of the slit S0 of the third slit group S3; and a liquid crystal orientation direction of the fourth liquid crystal part Q4 is parallel to an extension direction of the slit S0 of the fourth slit group S4.

[0156] The first liquid crystal part Q1 has a liquid crystal long axis extension line e1 which, in the orthographic projection on the first substrate 201, forms an angle a1 with the first direction X in the range of 30°-60°, for example, 45°; the second liquid crystal part Q2 has a liquid crystal long axis extension line e2 which, in the orthographic projection on the first substrate 201, forms an angle a2 with the first direction X in the range of 120°-150°, for example, 135°; the third liquid crystal part Q3 has a liquid crystal long axis extension line e3 which, in the orthographic projection on the first substrate 201, forms an angle a3 with the first direction X in the range of 210°-240°, for example, 225°; and the fourth liquid crystal part Q4 has a liquid crystal long axis extension line e4 which, in the orthographic projection on the first substrate 201, forms an angle a4 with the first direction X in the range of 300°-330°, for example, 315°.

[0157] The light adjusting structure shown in FIG. 3B can make the first liquid crystal part Q1 correspondingly emit left-handed circularly polarized light counterclockwise, the second liquid crystal part Q2 emit right-handed circularly polarized light clockwise, the third liquid crystal part Q3 correspondingly emit left-handed circularly polarized light counterclockwise, and the fourth liquid crystal part Q4 emit right-handed circularly polarized light clockwise, so that two kinds of circularly polarized light can be formed in two adjacent rows of liquid crystal cells Q100, 3D display can be realized, and four-domain display effect can be formed at the position corresponding to each pixel P, so that the resolution of the 3D display device is improved and the quality of 3D display is improved.

[0158] In a possible implementation, as shown in FIG. 4B, during the display process, the first electrode 205 can generate dark lines D at the junction positions of two domain regions due to different liquid crystal orientation directions of adjacent domain regions at the peripheral and central positions.

[0159] In a possible implementation, as shown in FIGS. 4A-4B, the first electrode 205 is a planar electrode; the first liquid crystal part Q1 has a liquid crystal long axis extension line e1 which, in the orthographic projection on the first substrate 201, forms an angle a1 with the first direction X in the range of -30°--60°, for example, -45°; the second liquid crystal part has a liquid crystal long axis extension line which, in the orthographic projection on the first substrate, forms an angle a2 with the first direction in the range of 30°-60°, for example, 45°; the third liquid crystal part has a liquid crystal long axis extension line which, in the orthographic projection on the first substrate, forms an angle a3 with the first direction in the range of 120°-150°, for example, 135°; and the fourth liquid crystal part has a liquid crystal long axis extension line which, in the orthographic projection on the first substrate, forms an angle a4 with the first direction in the range of 210°-240°, for example, 225°.

[0160] Through the light adjusting structure shown in FIG. 4B of the embodiment of the present disclosure, the first liquid crystal part Q1 corresponding area emits clockwise right-handed circularly polarized light, the second liquid crystal part Q2 emits counterclockwise left-handed circularly polarized light, the third liquid crystal part Q3 corresponding area emits clockwise right-handed circularly polarized light, and the fourth liquid crystal part Q4 emits counterclockwise left-handed circularly polarized light, two kinds of rotational direction polarized light can be formed in the adjacent two rows of liquid crystal cell rows Q100, 3D display is realized, and four-domain display effect is formed at the position corresponding to each pixel P, the resolution of the 3D display device is improved, and the quality of 3D display is improved.

[0161] In a possible implementation, as shown in FIG. 1B and FIG. 5, the first electrode 205 is located on one side of the first substrate 201 facing the liquid crystal layer 204; the second electrode 206 is located on one side of the second substrate 207 facing the liquid crystal layer 204; the first electrode 205 is a planar electrode; the liquid crystal repeating unit Q includes: a first liquid crystal group QA and a second liquid crystal group QB arranged along a first direction X; the first liquid crystal group QA and the second liquid crystal group QB each include: a first liquid crystal part Q1, a second liquid crystal part Q2, a third liquid crystal part Q3, and a fourth liquid crystal part Q4; the first liquid crystal part Q1 and the fourth liquid crystal part Q2 are arranged along a second direction Y, the second liquid crystal part Q2 and the third liquid crystal part Q3 are arranged along the second direction Y, the first liquid crystal part Q1 and the second liquid crystal part Q2 are arranged along the first direction X, the third liquid crystal part Q3 and the fourth liquid crystal part Q4 are arranged along the first direction X, and the second direction Y is perpendicular to the first direction X.

[0162] The first liquid crystal part Q1 has a liquid crystal long axis extension line e1, which is orthogonally projected on the first substrate 201, and forms an angle α1 with the first direction X in a range of -30° to -60°, for example, -45°; the second liquid crystal part Q2 has a liquid crystal long axis extension line e2, which is orthogonally projected on the first substrate 201, and forms an angle α2 with the first direction X in a range of 30° to 60°, for example, 45°; the third liquid crystal part Q3 has a liquid crystal long axis extension line e3, which is orthogonally projected on the first substrate 201, and forms an angle α3 with the first direction X in a range of 120° to 150°, for example, 135°; and the fourth liquid crystal part Q4 has a liquid crystal long axis extension line e4, which is orthogonally projected on the first substrate 201, and forms an angle α4 with the first direction X in a range of 210° to 240°, for example, 225°.

[0163] Through the light adjusting structure shown in FIG. 5 of the embodiment of the present disclosure, eight-domain display effect can be formed at the position corresponding to each pixel P, the resolution of the 3D display device is improved, and the quality of 3D display is improved.

[0164] In a possible implementation, as shown in FIGS. 1B, 6A and 6B, the first electrode 205 is located on the side of the first substrate 201 facing the liquid crystal layer 204; the second electrode 206 is located on the side of the second substrate 207 facing the liquid crystal layer 204; the first electrode 205 is a planar electrode; the liquid crystal repeating unit Q includes, in sequence along the second direction Y, a first liquid crystal part Q1, a second liquid crystal part Q2, a third liquid crystal part Q3, and a fourth liquid crystal part Q4; the first liquid crystal part Q1 has a liquid crystal long axis extension line e1, which is orthogonally projected on the first substrate 201, and forms an angle a1 with the first direction X, the angle a1 ranges from 120° to 150°, for example, 135°; the second liquid crystal part Q2 has a liquid crystal long axis extension line e2, which is orthogonally projected on the first substrate 201, and forms an angle a2 with the first direction X, the angle a2 ranges from 30° to 60°, for example, 45°; the third liquid crystal part Q3 has a liquid crystal long axis extension line e3, which is orthogonally projected on the first substrate 201, and forms an angle a3 with the first direction X, the angle a3 ranges from -30° to -60°, for example, -45°; the fourth liquid crystal part Q4 has a liquid crystal long axis extension line e4, which is orthogonally projected on the first substrate 201, and forms an angle a4 with the first direction X, the angle a4 ranges from -120° to -150°, for example, -135°.

[0165] Through the light adjusting structure shown in FIG. 6B, the first liquid crystal part Q1 corresponds to an area emitting right-handed circularly polarized light in a clockwise direction, the second liquid crystal part Q2 emits left-handed circularly polarized light in a counterclockwise direction, the third liquid crystal part Q3 corresponds to an area emitting right-handed circularly polarized light in a clockwise direction, and the fourth liquid crystal part Q4 emits left-handed circularly polarized light in a counterclockwise direction, so that two kinds of circularly polarized light are formed in two adjacent rows of liquid crystal unit rows Q100, 3D display is realized, and four-domain display effects are formed at positions corresponding to each pixel P, so that the resolution of the 3D display device is improved, and the quality of 3D display is improved.

[0166] Based on the same inventive concept, the embodiment of the present disclosure also provides a 3D manufacturing method, as provided in the embodiment of the present disclosure, as shown in FIG. 14, which includes the following steps.

[0167] In step S100, a plurality of first electrodes, second electrodes, and a liquid crystal layer are formed between the first substrate and the second substrate.

[0168] In step S200, the first electrode and the second electrode are powered and solidified, so that the liquid crystals of different liquid crystal parts in the liquid crystal layer are deflected and fixed in a preset orientation, to form a light adjusting structure.

[0169] In step S300, the light adjusting structure is attached to the light-emitting side of the display panel.

[0170] The 3D display device provided by the embodiment of the present disclosure mainly adds three processes compared with the conventional 3D display device.

[0171] 1. The first electrode 205 and the second electrode 206 are designed on the light adjusting structure 200, and a horizontal or vertical electric field can be formed after power on, so as to ensure that the liquid crystal can be deflected;

[0172] 2. After the light adjusting structure 200 is coated with an alignment film layer, the liquid crystal layer is aligned, a certain pre-tilt angle and alignment force are formed, and it is ensured that the liquid crystal can be deflected in a determined direction after power on;

[0173] 3. After the liquid crystal is coated, the liquid crystal in the pixel of the light adjusting structure 200 is deflected by power on, a multi-domain structure is formed, and ultraviolet curing is performed under the power on state of the light adjusting structure 200, so as to ensure that the liquid crystal is stable in the deflected state and ensure 3D display effect.

[0174] Although the preferred embodiments of the present application have been described, those skilled in the art who understand the basic creative concept can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0175] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A 3D display device, wherein, The display panel comprises: a display panel having a plurality of pixels; a light adjusting structure located on the light emitting side of the display panel; wherein the light adjusting structure comprises: a first substrate and a second substrate arranged oppositely; a plurality of first electrodes located between the first substrate and the second substrate; the first electrode in the orthographic projection of the first substrate is completely coincident with the orthographic projection of the pixel on the first substrate; a second electrode located between the first substrate and the second substrate; a liquid crystal layer located between the first substrate and the second substrate; the liquid crystal layer has a plurality of liquid crystal repeating units, the orthographic projection of the liquid crystal repeating unit on the first substrate is completely coincident with the orthographic projection of the pixel on the first substrate; the liquid crystal repeating unit comprises at least two liquid crystal parts, the liquid crystal orientation direction of different liquid crystal parts is different, and the liquid crystal orientation direction of the same liquid crystal part is the same.

2. The 3D display apparatus of claim 1, wherein, The display panel has a plurality of pixel rows extending along a first direction and arranged along a second direction, and the pixel row comprises a plurality of pixels arranged along the first direction in sequence; The liquid crystal layer has a plurality of liquid crystal unit rows extending along the first direction and arranged along the second direction, and the orthographic projection of the liquid crystal unit row on the first substrate is completely coincident with the orthographic projection of the pixel row on the first substrate; The liquid crystal unit row comprises at least two sub-liquid crystal unit rows extending along the first direction and arranged along the second direction; in the same liquid crystal unit row, the liquid crystal orientation direction of adjacent two sub-liquid crystal unit rows is different, and the liquid crystal orientation direction of the same sub-liquid crystal unit row is the same.

3. The 3D display apparatus of claim 1 or 2, wherein, The handedness direction of light emitted through different liquid crystal parts of the same liquid crystal repeating unit is different.

4. The 3D display apparatus of claim 2 or 3, wherein, The light adjusting structure further comprises a first light shielding layer located on the side of the second substrate facing the liquid crystal layer; The first light shielding layer comprises a plurality of first light shielding parts extending along the first direction and arranged along the second direction; the orthographic projection of the first light shielding part on the first substrate is located in the gap between adjacent two pixel rows in the orthographic projection on the first substrate.

5. The 3D display apparatus of claim 4, wherein, The first light shielding part is an integral connection structure.

6. The 3D display apparatus of claim 4, wherein, The first light shielding part comprises a plurality of first sub-light shielding parts arranged along the first direction in sequence, and there is a gap between adjacent first sub-light shielding parts.

7. The 3D display apparatus of claim 6, wherein, In the first light shielding layer, a plurality of first sub-light shielding parts are arranged in an array.

8. The 3D display apparatus of claim 6, wherein, In the first light shielding layer, the first sub-light shielding parts of adjacent first light shielding parts are distributed in a staggered manner.

9. The 3D display apparatus of claim 8, wherein, In adjacent two first light shielding parts, the distance between the centers of adjacent two first sub-light shielding parts in the second direction in the first direction is greater than zero and less than or equal to 140 mm.

10. The 3D display device of any of claims 7-9, wherein, In the same first light shielding part, the distance between adjacent first sub-light shielding parts in the first direction is greater than zero and less than or equal to 340 mm. In adjacent two first light shielding parts, the distance between the centers of adjacent two first sub-light shielding parts in the second direction in the second direction is greater than zero and less than or equal to 205 mm.

11. The 3D display device of any of claims 4-10, wherein, Adjacent first light shielding parts are separated by a plurality of pixel rows in the orthographic projection on the first substrate.

12. The 3D display device of any one of claims 4-11, wherein, The display panel has a plurality of pixel columns extending along the second direction and arranged along the first direction; The display panel comprises a second light shielding layer; the second light shielding layer comprises a plurality of first light shielding strips extending along the first direction and arranged along the second direction, and a plurality of second light shielding strips extending along the second direction and arranged along the first direction; the first light shielding strips are in the orthographic projection of the first substrate, and the gaps between adjacent pixel rows are in the orthographic projection of the first substrate; the second light shielding strips are in the orthographic projection of the first substrate, and the gaps between adjacent pixel columns are in the orthographic projection of the first substrate; The first light shielding strips are in the orthographic projection of the first substrate, and cover the first light shielding parts in the orthographic projection of the first substrate. The display panel has a plurality of pixel columns extending along the second direction and arranged along the first direction; 13. The 3D display apparatus of claim 2 or 3, wherein, The light adjusting structure further comprises a first light shielding layer on the side of the second substrate facing the liquid crystal layer; the first light shielding layer comprises a plurality of third light shielding strips extending along the first direction and arranged along the second direction, and a plurality of fourth light shielding strips extending along the second direction and arranged along the first direction; The third light shielding strips are in the orthographic projection of the first substrate, and the gaps between adjacent pixel rows are in the orthographic projection of the first substrate; the fourth light shielding strips are in the orthographic projection of the first substrate, and the gaps between adjacent pixel columns are in the orthographic projection of the first substrate. The pixel comprises a plurality of sub-pixels; 14. The 3D display apparatus of claim 13, wherein, The first light shielding layer further comprises a plurality of fifth light shielding strips extending along the second direction and arranged along the first direction; the fifth light shielding strips are in the orthographic projection of the first substrate, and the gaps between adjacent sub-pixel columns are in the orthographic projection of the first substrate. Among the light adjusting structure and the display panel, only the light adjusting structure has a first light shielding layer.

15. The 3D display apparatus of claim 13 or 14, wherein, The display panel comprises a second light shielding layer; the second light shielding layer comprises a plurality of second light shielding parts extending along the first direction and arranged along the second direction; the second light shielding parts are in the orthographic projection of the first substrate, and the gaps between adjacent two pixel rows are in the orthographic projection of the first substrate; 16. The 3D display apparatus of claim 13 or 14, wherein, The second light shielding part comprises a plurality of second sub-light shielding parts in sequence along the first direction, and has gaps between adjacent second sub-light shielding parts. The display panel comprises a plurality of transistors; 17. The 3D display apparatus of claim 16, wherein, The second sub-light shielding parts are in the orthographic projection of the first substrate, and cover the transistors in the orthographic projection of the first substrate. The 3D display device further comprises an optical adhesive layer between the first substrate and the display panel.

18. The 3D display device of any one of claims 1-17, wherein, The first electrode and the second electrode are in the same layer and are on the side of the first substrate facing the liquid crystal layer; 19. The 3D display device of any one of claims 1-18, wherein, The first electrode comprises a first slit group arranged along the second direction and a second slit group; ​ The liquid crystal repeating unit comprises a first liquid crystal part and a second liquid crystal part distributed along the second direction; the first liquid crystal part is coincident with the first slit group in the orthographic projection of the first substrate; the second liquid crystal part is coincident with the second slit group in the orthographic projection of the first substrate.

20. The 3D display apparatus of claim 19, wherein, The extension direction of the slit of the first slit group is the same as the liquid crystal orientation direction of the first liquid crystal part; the extension direction of the slit of the second slit group is the same as the liquid crystal orientation direction of the second liquid crystal part. The liquid crystal long axis extension line of the first liquid crystal part forms an angle with the first direction in the orthographic projection of the first substrate, and the angle is in the range of 30°-60°; the liquid crystal long axis extension line of the second liquid crystal part forms an angle with the first direction in the orthographic projection of the first substrate, and the angle is in the range of -30°- -60°, and the second direction is perpendicular to the first direction.

21. The 3D display apparatus of claim 19, wherein, The extension direction of the slit of the first slit group is perpendicular to the liquid crystal orientation direction of the first liquid crystal part; the extension direction of the slit of the second slit group is perpendicular to the liquid crystal orientation direction of the second liquid crystal part. The liquid crystal long axis extension line of the first liquid crystal part forms an angle with the first direction in the orthographic projection of the first substrate, and the angle is in the range of 120°-150°; the liquid crystal long axis extension line of the second liquid crystal part forms an angle with the first direction in the orthographic projection of the first substrate, and the angle is in the range of -120°- -150°, and the second direction is perpendicular to the first direction.

22. The 3D display device of any one of claims 1-18, wherein, The first electrode is located on the side of the first substrate facing the liquid crystal layer; the second electrode is located on the side of the second substrate facing the liquid crystal layer. The liquid crystal repeating unit comprises a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part; the first liquid crystal part and the fourth liquid crystal part are arranged along the first direction, the second liquid crystal part and the third liquid crystal part are arranged along the first direction, the first liquid crystal part and the second liquid crystal part are arranged along the second direction, the third liquid crystal part and the fourth liquid crystal part are arranged along the second direction, and the second direction is perpendicular to the first direction.

23. The 3D display apparatus of claim 22, wherein, The first electrode comprises a first slit group, a second slit group, a third slit group, and a fourth slit group; the first liquid crystal part is coincident with the first slit group in the orthographic projection of the first substrate; the second liquid crystal part is coincident with the second slit group in the orthographic projection of the first substrate; the third liquid crystal part is coincident with the third slit group in the orthographic projection of the first substrate; and the fourth liquid crystal part is coincident with the fourth slit group in the orthographic projection of the first substrate. The liquid crystal orientation direction of the first liquid crystal part is parallel to the slit extension direction of the first slit group; the liquid crystal orientation direction of the second liquid crystal part is parallel to the slit extension direction of the second slit group; the liquid crystal orientation direction of the third liquid crystal part is parallel to the slit extension direction of the third slit group; and the liquid crystal orientation direction of the fourth liquid crystal part is parallel to the slit extension direction of the fourth slit group. The first liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 30° to 60°; the second liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 120° to 150°; the third liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 210° to 240°; and the fourth liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 300° to 330°.

24. The 3D display apparatus of claim 22, wherein, The first electrode is a planar electrode. The first liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of -30° to -60°; the second liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 30° to 60°; the third liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 120° to 150°; and the fourth liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the first direction in the range of 210° to 240°.

25. The 3D display device of any one of claims 1-18, wherein, The first electrode is located on the side of the first substrate facing the liquid crystal layer. The second electrode is located on the side of the second substrate facing the liquid crystal layer. The liquid crystal repeating unit comprises: a first liquid crystal group and a second liquid crystal group arranged along a first direction; the first liquid crystal group and the second liquid crystal group each comprise: a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part; the first liquid crystal part and the fourth liquid crystal part are arranged along the first direction, the second liquid crystal part and the third liquid crystal part are arranged along the first direction, the first liquid crystal part and the second liquid crystal part are arranged along a second direction, the third liquid crystal part and the fourth liquid crystal part are arranged along the second direction, and the second direction is perpendicular to the first direction. The first liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the second direction in the range of -30° to -60°; the second liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the second direction in the range of 30° to 60°; the third liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the second direction in the range of 120° to 150°; and the fourth liquid crystal part has a liquid crystal long axis extension line which, in orthographic projection on the first substrate, forms an angle with the second direction in the range of 210° to 240°.

26. The 3D display device of any one of claims 1-18, wherein, The first electrode is located on one side of the first substrate facing the liquid crystal layer. The second electrode is located on one side of the second substrate facing the liquid crystal layer. The first electrode is a planar electrode. The liquid crystal repeating unit comprises: a first liquid crystal part, a second liquid crystal part, a third liquid crystal part, and a fourth liquid crystal part arranged in sequence along a first direction; the first liquid crystal part has a liquid crystal long axis extension line forming an angle with the first direction in the first substrate orthographic projection, and the angle ranges from 120° to 150°; the second liquid crystal part has a liquid crystal long axis extension line forming an angle with the first direction in the first substrate orthographic projection, and the angle ranges from 30° to 60°; the third liquid crystal part has a liquid crystal long axis extension line forming an angle with the first direction in the first substrate orthographic projection, and the angle ranges from -30° to -60°; and the fourth liquid crystal part has a liquid crystal long axis extension line forming an angle with the first direction in the first substrate orthographic projection, and the angle ranges from -120° to -150°. The method comprises:

27. A method of manufacturing a 3D display device as claimed in any one of the claims 1-26, wherein forming a plurality of first electrodes, second electrodes, and a liquid crystal layer between a first substrate and a second substrate; applying electricity to the first electrodes and the second electrodes and solidifying to make the liquid crystals in different liquid crystal parts in the liquid crystal layer deflect and be fixed in a preset orientation to form a light adjusting structure; attaching the light adjusting structure to the light emitting side of the display panel. ​

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